I use an Olfa mat and blades also. I love them. A lot of people recommend the Martelli mats. I have never used them so I can't comment on them .I know they do run a sale on them a couple of times a year. I have Fiskar mat with an ironing surface on the back. It is ok to use at retreat but I do find it dulls my blades. I only use it for trimming things at retreat, otherwise a use my Olfa mat.